Dan Bron wrote:
> Extended ints, like boxes, are "reference types"*. Amending an array of
> reference types takes time proportional to the size of the
> entire array; this is in contrast to amending an array of value types, which
> takes time proportional to the size of the index array
> (i.e. the number of values amended).
>
> Well, at least that's how it used to be [1]. The story might've changed
> since then.
>
> -Dan
>
> [1] http://www.jsoftware.com/pipermail/general/2001-December/008453.html
Amending an array of extended integer take a time proportional to the
size of the array.
:-( :-(
I did the following test that plot integer and extended integer time
require 'plot'
exttest =: monad define"0
name =. y # _1x
6!:2 'name =. _40x (<?y) } name'
)
numtest =: monad define"0
name =. y # _1
6!:2 'name =. _40 (<?y) } name'
)
sample =. 100
size =. 1e4
plot n ; ( numtest ,:~ exttest ) [ n =. size * >:i.sample
MfG
Luca.
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